Door opening and closing structure applied to brake shoe camera detection box

Abstract

The utility model discloses a door opening and closing structure applied to a brake-shoe camera detection box. The door opening and closing structure comprises a door plate, a door opening driving assembly and a door plate resetting assembly, the door opening driving assembly comprises an electric push rod, a linear guide rail, a movable sliding block, a pulley and a steel wire rope. The front end of a telescopic rod of the electric push rod is connected with the movable sliding block, the movable sliding block is installed on the linear guide rail in a sliding mode and connected with one end of the steel wire rope, the pulley is located on one side of the linear guide rail, and the steel wire rope extends in the direction parallel to the linear guide rail, then bypasses the pulley and extends in the direction perpendicular to the linear guide rail. The other end is connected with the door plate; the door opening driving assembly drives the door plate to be opened, and the door plate resetting assembly is used for resetting and closing the door plate. The electric push rod telescopic mode is adopted, pushing force is provided, the door plate can be opened more easily and rapidly, the door plate is matched with the steel wire rope and the door plate reset assembly, rapid opening and reset closing of the door plate are guaranteed, and the problem that the assembly space is limited is solved.

Description

Technical Field

[0001] This utility model relates to a door opening and closing structure for a brake shoe camera detection box in the rail transit industry. Background Technology

[0002] Brake shoes are a key component of the braking system of operating trains. Currently, brake shoes are widely used in railway transportation as a crucial part of the basic braking system for trains. During braking, they grip the wheel tread and use friction to stop the wheel's rotation. Typically, brake shoes are primarily made of copper-based composite materials, which wear down during use. This wear weakens the train's braking force, creating safety hazards. Therefore, brake shoes must be replaced when they wear down to a certain extent to ensure safe train operation. Brake shoes must be replaced when their remaining thickness is less than 5mm.

[0003] Currently, machine vision systems are widely used for brake shoe inspection. When a train passes the brake shoe camera of a machine vision system, the camera takes pictures to inspect the brake pads on the wheels. This requires opening the switch door of the brake shoe camera inspection box. Current switch door structures generally use gear transmission to move and open the door. The main shortcomings of this mode and technology are:

[0004] (1) When the door is opened by gear transmission, there will be jamming and unevenness.

[0005] (2) If there are stones or abnormal jamming on the door panel, the gear transmission method is prone to causing the motor to burn out frequently. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a door opening and closing structure for a brake shoe camera testing box, which changes the gear transmission method to an electric push rod extension method to provide a pushing force, making the door panel easier and faster to open, and ensuring that the motor is not easily burned out. At the same time, in conjunction with the wire rope and door panel reset assembly, it not only ensures that the door panel can be opened and reset and closed quickly, but also solves the problem of limited assembly space.

[0007] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0008] A door opening and closing structure for a brake shoe camera testing box is installed on the box cover of the brake shoe camera testing box, and includes a door panel, a door opening drive assembly, and a door panel reset assembly.

[0009] The door opening drive assembly includes an electric push rod, a linear guide rail, a movable slider, a pulley, and a steel wire rope; the front end of the telescopic rod of the electric push rod is connected to the movable slider, the movable slider is slidably mounted on the linear guide rail, one end of the movable slider is connected to the steel wire rope, the pulley is located on one side of the linear guide rail, the steel wire rope extends in a direction parallel to the linear guide rail and then passes around the pulley, and extends in a direction perpendicular to the linear guide rail, and its other end is connected to the door panel;

[0010] The door opening drive assembly drives the door panel to open, and the door panel reset assembly is used to reset the door panel to close.

[0011] Furthermore, the pulley is mounted on a mounting bracket, which is fixed to the cover plate of the brake shoe camera detection box.

[0012] Furthermore, a wire rope clamp is fixed on the door panel, and the end of the wire rope is connected to the wire rope clamp.

[0013] Furthermore, the door panel reset assembly includes an optical axis guide rail, a guide block, and a compression spring. The optical axis guide rail is fixedly installed on the cover plate of the brake shoe camera detection box and is perpendicular to the linear guide rail. The guide block is slidably installed on the optical axis guide rail, and the compression spring is installed on the optical axis guide rail and can act on the guide block. The guide block is also connected to the door panel.

[0014] Furthermore, the door panel reset assembly is provided in two sets, which are symmetrically arranged on both sides of the door panel.

[0015] The beneficial effects of this utility model are:

[0016] (1) This utility model changes the gear transmission method to an electric push rod extension method, providing a pushing force, making the door panel easier and faster to open, and ensuring that the motor is not easily burned out;

[0017] (2) The detection window of the brake shoe camera detection box is 80mm. The door panel must be moved 80mm to open the door panel. However, due to the space limitation of the brake shoe camera detection box, the electric push rod with a stroke of 80mm cannot be installed perpendicular to the door panel, so it cannot be directly pulled to open the door panel. Therefore, this utility model installs the electric push rod in a direction parallel to the door panel, and then uses steel wire rope and pulley to change the direction, thereby achieving the door panel opening effect.

[0018] (3) This utility model utilizes a door panel reset assembly composed of a compression spring, an optical axis guide rail, and a guide block to make the door panel smoothly return to its original position under the action of elasticity, and to ensure straightness and parallelism. Attached Figure Description

[0019] Figure 1This is a three-dimensional structural diagram of the opening and closing door structure of the brake shoe camera detection box according to the present invention.

[0020] Figure 2 This is a top view of the opening and closing door structure of the brake shoe camera detection box according to this utility model.

[0021] Figure 3 This is a schematic diagram of the brake shoe camera detection box.

[0022] In the diagram, 1: door panel; 2: electric push rod; 3: linear guide rail; 4: moving slider; 5: pulley; 6: wire rope; 7: wire rope clamp; 8: optical axis guide rail; 9: guide block; 10: compression spring; 11: fixed seat; 12: mounting bracket; 13: brake shoe camera detection box; 131: box cover. Detailed Implementation

[0023] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of this utility model.

[0024] like Figures 1 to 3 The diagram shows a door opening and closing structure for a brake shoe camera testing box. The door opening and closing structure is installed on the box cover 131 of the brake shoe camera testing box 13. It includes a door panel 1, a door opening drive assembly, and a door panel reset assembly. The door opening drive assembly drives the door panel 1 to open, and the door panel reset assembly is used to reset the door panel 1 to close.

[0025] The door opening drive assembly includes an electric push rod 2, a linear guide rail 3, a movable slider 4, a pulley 5, and a steel wire rope 6. The front end of the telescopic rod of the electric push rod 2 is connected to the movable slider 4 via an adapter block, and the movable slider 4 is slidably mounted on the linear guide rail 3. The linear guide rail 3 is parallel to the door panel 1. The linear guide rail is a ball bearing linear guide rail. One end of the movable slider 4 is connected to the steel wire rope 6. The pulley 5 is located on one side of the linear guide rail 3 and is mounted on a mounting bracket 12 via a connecting shaft; the mounting bracket 12 is fixed to the cover plate 131 of the brake shoe camera detection box 13. The cover plate 131 has a detection window, and the door panel 1 is correspondingly positioned on the detection window.

[0026] The steel wire rope 6 extends in a direction parallel to the linear guide rail 3, passes around the pulley 5, and then extends in a direction perpendicular to the linear guide rail 3, with its other end connected to the door panel 1.

[0027] A wire rope clamp 7 is fixed on the door panel 1, and the end of the wire rope 6 is connected to the door panel 1 through the wire rope clamp 7.

[0028] The electric push rod 2 can drive the movable slider 4 to move along the linear guide rail 3, thereby pulling the steel wire rope 6, changing its direction through the pulley 5, and then pulling the door panel 1 to move, thereby opening the detection window.

[0029] The door panel reset assembly includes an optical axis guide rail 8, a guide block 9, and a compression spring 10. The two ends of the optical axis guide rail 8 are fixedly mounted on the cover plate 131 of the gate shoe camera detection box 13 via fixing seats 11. The optical axis guide rail 8 is perpendicular to the linear guide rail 3; the optical axis guide rail 8 is a cylindrical linear optical axis guide rail; the guide block 9 is slidably mounted on the optical axis guide rail 8, and the compression spring 10 is mounted on the optical axis guide rail 8 and can act on the guide block 9; the guide block 9 is connected to the door panel 1. The door panel reset and closes by rebounding through the compression spring 10 mounted on the optical axis guide rail 8. In this embodiment, two sets of the door panel reset assembly are provided, symmetrically arranged on both sides of the door panel 1. The compression spring 10 mounted on the optical axis guide rail 8 ensures straightness and parallelism on both sides, enabling the door panel to retract smoothly.

[0030] When the train brake shoes need to be inspected, the train passes the brake shoe camera of the machine vision system, activating the opening and closing mechanism on the brake shoe camera inspection box 13. Specifically, the motor drives the extension rod of the electric push rod 2 to extend, causing the moving slider 4 to move along the linear guide rail 3, thereby pulling the steel wire rope 6. The pulley 5 changes direction, pulling the door panel 1 to open the inspection window. The camera module in the brake shoe camera inspection box takes pictures of the brake shoes on the wheels to determine whether the brake shoes need to be replaced in time based on the wear condition of the photographed brake shoes. After the picture is taken, when the electric push rod 2 retracts, the steel wire rope 6, being flexible, cannot close the door panel 1. During the opening of the door panel, the compression spring 10 is compressed. After the picture is taken, the compression spring 10, installed on the optical axis guide rail 8, rebounds, resetting and closing the door panel 1. Closing the door panel 1 prevents dust, stones, foreign objects, etc., from entering the brake shoe camera inspection box.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] (1) Due to space limitations and the stroke requirements of the electric push rod, the electric push rod cannot be installed perpendicular to the door panel, and the door panel cannot be pushed open and retracted directly. This utility model installs the electric push rod in a parallel direction to the door panel, and uses steel wire rope and pulley to vertically change the direction, so as to push the door panel open.

[0033] (2) When the electric push rod retracts, the steel wire rope is flexible and cannot make the door panel return to its original position. This utility model uses the elastic force of the compression spring installed on the optical axis guide rail to retract the door panel, which helps to ensure straightness and parallelism on both sides, and ensures that the door panel can return to its original position smoothly.

[0034] (3) This utility model uses an electric push rod as the power to open and close the door panel. It has good pushing force, fast response time, and high efficiency, ensuring that the door panel can be opened in a short time (1.8s).

[0035] (3) This utility model has low maintenance difficulty and maintenance cost. It only needs to check the compression spring every six months or so. If the elasticity is insufficient, it can be replaced in time.

[0036] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A door opening and closing structure for a brake shoe camera inspection box, wherein the door opening and closing structure is installed on the box cover of the brake shoe camera inspection box, characterized in that: Includes the door panel, door opening drive assembly, and door panel reset assembly; The door opening drive assembly includes an electric push rod, a linear guide rail, a movable slider, a pulley, and a steel wire rope; the front end of the telescopic rod of the electric push rod is connected to the movable slider, the movable slider is slidably mounted on the linear guide rail, one end of the movable slider is connected to the steel wire rope, the pulley is located on one side of the linear guide rail, the steel wire rope extends in a direction parallel to the linear guide rail and then passes around the pulley, and extends in a direction perpendicular to the linear guide rail, and its other end is connected to the door panel; The door opening drive assembly drives the door panel to open, and the door panel reset assembly is used to reset the door panel to close.

2. The opening and closing door structure for a brake shoe camera detection box according to claim 1, characterized in that, The pulley is mounted on a mounting bracket, which is fixed to the cover plate of the brake shoe camera detection box.

3. The opening and closing door structure for a brake shoe camera detection box according to claim 1, characterized in that, A wire rope clamp is fixed on the door panel, and the end of the wire rope is connected to the wire rope clamp.

4. The opening and closing door structure for a brake shoe camera detection box according to claim 1, characterized in that, The door panel reset assembly includes an optical axis guide rail, a guide block, and a compression spring. The optical axis guide rail is fixedly installed on the cover plate of the brake shoe camera detection box and is perpendicular to the linear guide rail. The guide block is slidably installed on the optical axis guide rail, and the compression spring is installed on the optical axis guide rail and can act on the guide block. The guide block is also connected to the door panel.

5. The opening and closing door structure for a brake shoe camera detection box according to claim 1, characterized in that, The door panel reset assembly is provided in two sets, which are symmetrically arranged on both sides of the door panel.

Images